20 CATALOGUE OF THE MOLLUSCA 



Vars. Tritonia pulchella, Aid. and Hanc. in Ann. Nat. 

 Hist. ix. 33. 

 Tritonia felina, Aid. and Hanc. in Ann. Nat. Hist, 

 ix. 33. 

 Among the rocks near low-water mark at Cullercoats and 

 Whitley, not uncommon. A specimen from Bamborough is 

 labelled Tritonia Trevelyana by Dr. Leach in the British Mu- 

 seum. 



13. DOTO, Oken. 



1. D. FRAGiLis, Forhes. 



Melihea pinnatifida, Johns, in Ann. Nat. Hist. i. 116. 

 Melihoea fragilis, Forbes Mai. Monen. 4, t. 1, f. 4. 

 On Tzibularia indivisa, in about fifteen or twenty fathoms 

 water, not rare. Cullercoats and Newbiggin. 



2. D. coRONATA, Gmel. 



Melihea coronata, Johns, in Ann. Nat. His. i. 117, t. 3, f. 



5-8. 

 Doto coronata, Aid. and Hanc. Mon.Nudib. Moll., fam. 3, pi. 6. 

 Var. Melihoea ornata, Aid. and Hanc. in Ann. Nat. Hist, 

 ix. 34. 

 On corallines near low-water mark, rather rare ; common on 

 Plumularia falcata, from the coralline zone on most parts of the 

 coast. 



14. EOLIS, Cmler. 



1. E. PAPiLLosA, Linn. 



Eolidia papillosa, Johns, in Loud. Mag. Nat. Hist. viii. 

 376, £ 35. Ann. Nat. Hist. i. 118. 

 Under stones among the rocks between tide marks, not un- 

 common. 



2. E. ROSEA, Aid. and Hanc. 



Eolis rosea, Aid. and Hanc. in Ann. Nat. Hist. ix. 34. 

 Among the rocks at Cullercoats, rare. — A. H. This is rather 

 a doubtful species, and may possibly be a variety of the last. 



3. E. OBTUsALis, Aid. and Hanc. 



Eolis obtusalis, Aid. and Hanc. in Ann. Nat. Hist. ix. 34. 



